scummvm/engines/mohawk/resource.cpp

346 lines
12 KiB
C++

/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*
*/
#include "mohawk/resource.h"
#include "common/util.h"
namespace Mohawk {
MohawkArchive::MohawkArchive() {
_mhk = NULL;
_types = NULL;
_fileTable = NULL;
}
void MohawkArchive::open(Common::String filename) {
Common::File *file = new Common::File();
if (!file->open(filename.c_str()))
error ("Could not open file \'%s\'", filename.c_str());
_curFile = filename;
open(file);
}
void MohawkArchive::close() {
delete _mhk; _mhk = NULL;
delete[] _types; _types = NULL;
delete[] _fileTable; _fileTable = NULL;
_curFile.clear();
}
void MohawkArchive::open(Common::SeekableReadStream *stream) {
// Make sure no other file is open...
close();
_mhk = stream;
if (_mhk->readUint32BE() != ID_MHWK)
error ("Could not find tag \'MHWK\'");
_fileSize = _mhk->readUint32BE();
if (_mhk->readUint32BE() != ID_RSRC)
error ("Could not find tag \'RSRC\'");
_rsrc.version = _mhk->readUint16BE();
if (_rsrc.version != 0x100)
error("Unsupported Mohawk resource version %d.%d", (_rsrc.version >> 8) & 0xff, _rsrc.version & 0xff);
_rsrc.compaction = _mhk->readUint16BE(); // Only used in creation, not in reading
_rsrc.filesize = _mhk->readUint32BE();
_rsrc.abs_offset = _mhk->readUint32BE();
_rsrc.file_table_offset = _mhk->readUint16BE();
_rsrc.file_table_size = _mhk->readUint16BE();
debug (3, "Absolute Offset = %08x", _rsrc.abs_offset);
/////////////////////////////////
//Resource Dir
/////////////////////////////////
// Type Table
_mhk->seek(_rsrc.abs_offset);
_typeTable.name_offset = _mhk->readUint16BE();
_typeTable.resource_types = _mhk->readUint16BE();
debug (0, "Name List Offset = %04x Number of Resource Types = %04x", _typeTable.name_offset, _typeTable.resource_types);
_types = new Type[_typeTable.resource_types];
for (uint16 i = 0; i < _typeTable.resource_types; i++) {
_types[i].tag = _mhk->readUint32BE();
_types[i].resource_table_offset = _mhk->readUint16BE();
_types[i].name_table_offset = _mhk->readUint16BE();
// HACK: Zoombini's SND resource starts will a NULL.
if (_types[i].tag == ID_SND)
debug (3, "Type[%02d]: Tag = \'SND\' ResTable Offset = %04x NameTable Offset = %04x", i, _types[i].resource_table_offset, _types[i].name_table_offset);
else
debug (3, "Type[%02d]: Tag = \'%s\' ResTable Offset = %04x NameTable Offset = %04x", i, tag2str(_types[i].tag), _types[i].resource_table_offset, _types[i].name_table_offset);
//Resource Table
_mhk->seek(_rsrc.abs_offset + _types[i].resource_table_offset);
_types[i].resTable.resources = _mhk->readUint16BE();
debug (3, "Resources = %04x", _types[i].resTable.resources);
_types[i].resTable.entries = new Type::ResourceTable::Entries[_types[i].resTable.resources];
for (uint16 j = 0; j < _types[i].resTable.resources; j++) {
_types[i].resTable.entries[j].id = _mhk->readUint16BE();
_types[i].resTable.entries[j].index = _mhk->readUint16BE();
debug (4, "Entry[%02x]: ID = %04x (%d) Index = %04x", j, _types[i].resTable.entries[j].id, _types[i].resTable.entries[j].id, _types[i].resTable.entries[j].index);
}
// Name Table
_mhk->seek(_rsrc.abs_offset + _types[i].name_table_offset);
_types[i].nameTable.num = _mhk->readUint16BE();
debug (3, "Names = %04x", _types[i].nameTable.num);
_types[i].nameTable.entries = new Type::NameTable::Entries[_types[i].nameTable.num];
for (uint16 j = 0; j < _types[i].nameTable.num; j++) {
_types[i].nameTable.entries[j].offset = _mhk->readUint16BE();
_types[i].nameTable.entries[j].index = _mhk->readUint16BE();
debug (4, "Entry[%02x]: Name List Offset = %04x Index = %04x", j, _types[i].nameTable.entries[j].offset, _types[i].nameTable.entries[j].index);
// Name List
uint32 pos = _mhk->pos();
_mhk->seek(_rsrc.abs_offset + _typeTable.name_offset + _types[i].nameTable.entries[j].offset);
char c = (char)_mhk->readByte();
while (c != 0) {
_types[i].nameTable.entries[j].name += c;
c = (char)_mhk->readByte();
}
debug (3, "Name = \'%s\'", _types[i].nameTable.entries[j].name.c_str());
// Get back to next entry
_mhk->seek(pos);
}
// Return to next TypeTable entry
_mhk->seek(_rsrc.abs_offset + (i + 1) * 8 + 4);
debug (3, "\n");
}
_mhk->seek(_rsrc.abs_offset + _rsrc.file_table_offset);
_fileTableAmount = _mhk->readUint32BE();
_fileTable = new FileTable[_fileTableAmount];
for (uint32 i = 0; i < _fileTableAmount; i++) {
_fileTable[i].offset = _mhk->readUint32BE();
_fileTable[i].dataSize = _mhk->readUint16BE();
_fileTable[i].dataSize += _mhk->readByte() << 16; // Get bits 15-24 of dataSize too
_fileTable[i].flags = _mhk->readByte();
_fileTable[i].unk = _mhk->readUint16BE();
// Add in another 3 bits for file size from the flags.
// The flags are useless to us except for doing this ;)
_fileTable[i].dataSize += (_fileTable[i].flags & 7) << 24;
debug (4, "File[%02x]: Offset = %08x DataSize = %07x Flags = %02x Unk = %04x", i, _fileTable[i].offset, _fileTable[i].dataSize, _fileTable[i].flags, _fileTable[i].unk);
}
}
bool MohawkArchive::hasResource(uint32 tag, uint16 id) {
if (!_mhk)
return false;
int16 typeIndex = getTypeIndex(tag);
if (typeIndex < 0)
return false;
return (getIdIndex(typeIndex, id) >= 0);
}
uint32 MohawkArchive::getOffset(uint32 tag, uint16 id) {
assert(_mhk);
int16 typeIndex = getTypeIndex(tag);
assert(typeIndex >= 0);
int16 idIndex = getIdIndex(typeIndex, id);
assert(idIndex >= 0);
return _fileTable[_types[typeIndex].resTable.entries[idIndex].index - 1].offset;
}
Common::SeekableReadStream *MohawkArchive::getRawData(uint32 tag, uint16 id) {
if (!_mhk)
error ("MohawkArchive::getRawData - No File in Use");
int16 typeIndex = getTypeIndex(tag);
if (typeIndex < 0)
error ("Could not find a tag of \'%s\' in file \'%s\'", tag2str(tag), _curFile.c_str());
int16 idIndex = getIdIndex(typeIndex, id);
if (idIndex < 0)
error ("Could not find \'%s\' %04x in file \'%s\'", tag2str(tag), id, _curFile.c_str());
// Note: the fileTableIndex is based off 1, not 0. So, subtract 1
uint16 fileTableIndex = _types[typeIndex].resTable.entries[idIndex].index - 1;
// WORKAROUND: tMOV resources pretty much ignore the size part of the file table,
// as the original just passed the full Mohawk file to QuickTime and the offset.
// We need to do this because of the way Mohawk is set up (this is much more "proper"
// than passing _mhk at the right offset). We may want to do that in the future, though.
if (_types[typeIndex].tag == ID_TMOV) {
if (fileTableIndex == _fileTableAmount)
return new Common::SeekableSubReadStream(_mhk, _fileTable[fileTableIndex].offset, _mhk->size());
else
return new Common::SeekableSubReadStream(_mhk, _fileTable[fileTableIndex].offset, _fileTable[fileTableIndex + 1].offset);
}
return new Common::SeekableSubReadStream(_mhk, _fileTable[fileTableIndex].offset, _fileTable[fileTableIndex].offset + _fileTable[fileTableIndex].dataSize);
}
void LivingBooksArchive_v1::open(Common::SeekableReadStream *stream) {
close();
_mhk = stream;
// This is for the "old" Mohawk resource format used in some older
// Living Books. It is very similar, just missing the MHWK tag and
// some other minor differences, especially with the file table
// being merged into the resource table.
uint32 headerSize = _mhk->readUint32BE();
// NOTE: There are differences besides endianness! (Subtle changes,
// but different).
if (headerSize == 6) { // We're in Big Endian mode (Macintosh)
_mhk->readUint16BE(); // Resource Table Size
_typeTable.resource_types = _mhk->readUint16BE();
_types = new OldType[_typeTable.resource_types];
debug (0, "Old Mohawk File (Macintosh): Number of Resource Types = %04x", _typeTable.resource_types);
for (uint16 i = 0; i < _typeTable.resource_types; i++) {
_types[i].tag = _mhk->readUint32BE();
_types[i].resource_table_offset = (uint16)_mhk->readUint32BE() + 6;
_mhk->readUint32BE(); // Unknown (always 0?)
debug (3, "Type[%02d]: Tag = \'%s\' ResTable Offset = %04x", i, tag2str(_types[i].tag), _types[i].resource_table_offset);
uint32 oldPos = _mhk->pos();
// Resource Table/File Table
_mhk->seek(_types[i].resource_table_offset);
_types[i].resTable.resources = _mhk->readUint16BE();
_types[i].resTable.entries = new OldType::ResourceTable::Entries[_types[i].resTable.resources];
for (uint16 j = 0; j < _types[i].resTable.resources; j++) {
_types[i].resTable.entries[j].id = _mhk->readUint16BE();
_types[i].resTable.entries[j].offset = _mhk->readUint32BE();
_types[i].resTable.entries[j].size = _mhk->readByte() << 16;
_types[i].resTable.entries[j].size += _mhk->readUint16BE();
_mhk->skip(5); // Unknown (always 0?)
debug (4, "Entry[%02x]: ID = %04x (%d)\tOffset = %08x, Size = %08x", j, _types[i].resTable.entries[j].id, _types[i].resTable.entries[j].id, _types[i].resTable.entries[j].offset, _types[i].resTable.entries[j].size);
}
_mhk->seek(oldPos);
debug (3, "\n");
}
} else if (SWAP_BYTES_32(headerSize) == 6) { // We're in Little Endian mode (Windows)
_mhk->readUint16LE(); // Resource Table Size
_typeTable.resource_types = _mhk->readUint16LE();
_types = new OldType[_typeTable.resource_types];
debug (0, "Old Mohawk File (Windows): Number of Resource Types = %04x", _typeTable.resource_types);
for (uint16 i = 0; i < _typeTable.resource_types; i++) {
_types[i].tag = _mhk->readUint32LE();
_types[i].resource_table_offset = _mhk->readUint16LE() + 6;
_mhk->readUint16LE(); // Unknown (always 0?)
debug (3, "Type[%02d]: Tag = \'%s\' ResTable Offset = %04x", i, tag2str(_types[i].tag), _types[i].resource_table_offset);
uint32 oldPos = _mhk->pos();
// Resource Table/File Table
_mhk->seek(_types[i].resource_table_offset);
_types[i].resTable.resources = _mhk->readUint16LE();
_types[i].resTable.entries = new OldType::ResourceTable::Entries[_types[i].resTable.resources];
for (uint16 j = 0; j < _types[i].resTable.resources; j++) {
_types[i].resTable.entries[j].id = _mhk->readUint16LE();
_types[i].resTable.entries[j].offset = _mhk->readUint32LE();
_types[i].resTable.entries[j].size = _mhk->readUint16LE();
_mhk->readUint32LE(); // Unknown (always 0?)
debug (4, "Entry[%02x]: ID = %04x (%d)\tOffset = %08x, Size = %08x", j, _types[i].resTable.entries[j].id, _types[i].resTable.entries[j].id, _types[i].resTable.entries[j].offset, _types[i].resTable.entries[j].size);
}
_mhk->seek(oldPos);
debug (3, "\n");
}
} else
error("Could not determine type of Old Mohawk resource");
}
uint32 LivingBooksArchive_v1::getOffset(uint32 tag, uint16 id) {
assert(_mhk);
int16 typeIndex = getTypeIndex(tag);
assert(typeIndex >= 0);
int16 idIndex = getIdIndex(typeIndex, id);
assert(idIndex >= 0);
return _types[typeIndex].resTable.entries[idIndex].offset;
}
Common::SeekableReadStream *LivingBooksArchive_v1::getRawData(uint32 tag, uint16 id) {
if (!_mhk)
error ("LivingBooksArchive_v1::getRawData - No File in Use");
int16 typeIndex = getTypeIndex(tag);
if (typeIndex < 0)
error ("Could not find a tag of \'%s\' in file \'%s\'", tag2str(tag), _curFile.c_str());
int16 idIndex = getIdIndex(typeIndex, id);
if (idIndex < 0)
error ("Could not find \'%s\' %04x in file \'%s\'", tag2str(tag), id, _curFile.c_str());
return new Common::SeekableSubReadStream(_mhk, _types[typeIndex].resTable.entries[idIndex].offset, _types[typeIndex].resTable.entries[idIndex].offset + _types[typeIndex].resTable.entries[idIndex].size);
}
} // End of namespace Mohawk